What Collateral Do Banks Require for a Letter of Credit?

The collateral required for a letter of credit is, in most cases, cash deposited into a restricted account controlled by the issuing bank in an amount equal to the full face value of the credit. Banks will accept other assets — marketable securities, accounts receivable, inventory, commercial real estate, or a third-party guarantee — but each of those alternatives carries a valuation discount, and the weaker or less liquid the asset, the more of it you have to pledge. What a specific bank demands from a specific applicant turns on creditworthiness, the size and duration of the credit, and how quickly the bank believes it could turn the pledged asset into cash if you fail to reimburse it.

Why the Bank Wants Security in the First Place

A letter of credit shifts payment risk from the seller to the issuing bank. The bank promises to pay the beneficiary when compliant documents are presented and then looks to you for reimbursement. Under UCP 600, the bank has up to five banking days after presentation to decide whether documents comply, and once it accepts them, it must pay whether or not you have the money ready.

That gap between the bank’s payment obligation and your reimbursement is what collateral is closing. Applicants with strong credit and an established relationship may get a letter of credit issued unsecured under a pre-approved credit facility. Everyone else posts something.

Cash Collateral: the Default Requirement

Cash is what banks want. You deposit money into a segregated, restricted account that the bank controls, typically equal to 100 percent of the letter of credit’s maximum draw amount, sometimes slightly more to cover fees or interest that may accrue. There is no market risk and no liquidation delay, so the arrangement is straightforward on both sides.

The bank secures its position through a deposit account control agreement. Under the Uniform Commercial Code, control is the only way to perfect a security interest in a deposit account, and it exists when the depositary bank agrees in an authenticated record to follow the secured party’s instructions on the funds without your further consent.1Legal Information Institute. Uniform Commercial Code 9-104 – Control of Deposit Account

Short-term Treasury bills and highly rated certificates of deposit are treated as cash equivalents. They still take a small valuation discount, often 1 to 3 percent for maturities under one year, to account for any price movement during a forced sale.2The Options Clearing Corporation. Acceptable Collateral and Haircuts – Section: Collateral Haircut Schedule

Marketable Securities

Publicly traded stocks and bonds are acceptable, but what the bank will actually credit varies sharply with what you hold. Investment-grade corporate bonds and broad-market equities move much more easily than thinly traded small-cap stock or concentrated single-name positions. The bank wants confidence it can sell without crushing the price.

Discounts here are much steeper than on cash. Banks commonly discount equities by 20 to 50 percent of market value depending on liquidity and volatility, and speculative holdings may be refused outright. The Basel framework sets minimum haircut floors of 6 percent for main index equities and 10 percent for other eligible assets, and individual banks routinely apply higher figures for their own risk management.3Bank for International Settlements. Basel Framework CRE56 – Minimum Haircut Floors for Securities Financing Transactions

Perfection is usually achieved through a control agreement with your brokerage or custodian, which lets the bank sell without needing your cooperation. Filing a financing statement also works for investment property, but control gives the bank stronger priority rights.4Legal Information Institute. Uniform Commercial Code 9-312 – Perfection of Security Interests in Chattel Paper, Deposit Accounts, Documents, Goods Covered by Documents, Instruments, Investment Property, Letter-of-Credit Rights, and Money

Accounts Receivable and Inventory

Working capital assets are accepted, with headaches. Receivables must be verified as legitimate, undisputed invoices owed by creditworthy customers. Banks often require a lockbox where your customers send payments directly to a bank-controlled account, so the cash passes through the bank’s hands. If you default, the UCC lets the bank notify those account debtors to pay it directly.5Legal Information Institute. Uniform Commercial Code 9-607 – Collection and Enforcement by Secured Party

Inventory is the least favored working capital collateral. Its value depends on demand, condition, and how easily someone else can move your stock. Banks generally advance only 50 to 60 percent of inventory cost and prefer finished goods to raw materials or work-in-progress. Perfection for both receivables and inventory is by filing a UCC-1 financing statement with the secretary of state in your jurisdiction.6Legal Information Institute. Uniform Commercial Code 9-310 – When Filing Required to Perfect Security Interest or Agricultural Lien

Commercial Real Estate

Commercial property or developed land is sometimes pledged for large, long-duration letters of credit. Loan-to-value ratios typically sit between 65 and 75 percent depending on property type. An industrial building might qualify at the higher end of that range, a specialty-use property at the lower end. The bank records a mortgage or deed of trust in the county where the property is located.

Expect an independent appraisal at your cost, plus environmental due diligence. A Phase I Environmental Site Assessment is standard when there is any potential contamination risk, and if it turns up concerns, a Phase II with soil or groundwater testing may follow. The bank does not want a security interest in what turns out to be a liability.

Guarantees and Standby Letters of Credit

You can also arrange for someone else to stand behind the obligation. A corporate parent might guarantee a subsidiary’s reimbursement, giving the bank a direct claim on the parent’s balance sheet. The guarantee is only as strong as the guarantor, so the bank will underwrite the guarantor’s finances just as carefully as your own.

A standby letter of credit from a separate, highly rated bank can play the same role. This substitutes one bank’s credit risk for yours and is common in cross-border deals where your local bank is not well known to the issuing bank.

How Haircuts and Margin Requirements Set the Real Number

Two numbers determine how much collateral you actually have to pledge: the haircut on the asset and the margin requirement on the credit.

The haircut is the discount the bank applies to the pledged asset’s market value. Cash equivalents might be discounted 1 to 3 percent, equities 20 percent or more, inventory 40 to 50 percent below book. The margin requirement is the percentage of the letter of credit’s face value that the post-haircut collateral must cover. A 100 percent margin means post-haircut value equals the full L/C amount; many banks require 105 to 110 percent to build in additional buffer.

Worked example: pledge publicly traded stock worth $200,000 against a $100,000 letter of credit. Apply a 30 percent haircut and recognized collateral value drops to $140,000. With a 110 percent margin requirement, you need at least $110,000 in recognized value, so the stock covers it. A market dip could change that overnight.

Banks monitor the market value of pledged securities continuously. If the post-haircut value falls below the agreed maintenance margin, the bank issues a margin call. You then have to pledge more collateral or deposit cash to close the shortfall. Missing a margin call is a default event, and the bank can liquidate immediately.

How the Bank Locks Down What You Pledge

The paperwork starts with a security agreement, a private contract in which you grant the bank a security interest in specifically described collateral and set out when the bank can seize and sell it. Perfection is the separate, public step that makes the bank’s claim enforceable against other creditors. Miss the perfection step and a bankruptcy trustee or competing lender can reach the same assets ahead of the bank.

The method depends on the asset:

Fees and Opportunity Cost You Pay on Top

Posting collateral is not the whole bill. Banks charge issuance fees typically running 0.1 to 1.5 percent of the L/C’s face value, depending on the bank, the transaction’s risk, and your relationship with the institution. Amendment fees, advising fees, and document examination fees add to that.

Real estate collateral brings its own line items: independent appraisal, environmental assessments, title work, and recording fees. Securities collateral involves any custodial or brokerage arrangements the bank requires. UCC-1 filing fees are modest, but legal fees for drafting the security agreement and any control agreements can be significant for complex collateral packages.

Then there is the opportunity cost. Cash locked in a restricted account earns limited or no interest and is unavailable for the business. Pledged securities cannot be sold or repositioned. For a business running tight on working capital, the true cost of a fully cash-collateralized letter of credit is the bank’s fees plus the economic drag of tying up the money for the life of the credit.

Getting Your Collateral Back

Most letters of credit expire without ever being drawn. When the credit expires unused or is formally canceled, the bank’s contingent obligation ends and the collateral is released. You typically initiate the release by asking, once the bank’s credit department confirms no outstanding obligations remain.

Each perfection step reverses. If the bank filed a UCC-1, it files a termination statement; for non-consumer-goods collateral, the bank has 20 days after receiving an authenticated demand from you to send or file the termination.7Legal Information Institute. Uniform Commercial Code 9-513 – Termination Statement For cash collateral, the bank terminates the control agreement and transfers funds back to your operating account. For securities, the bank releases its control arrangement with the custodian. For real estate, the mortgage or deed of trust is released in the county land records.

Banks sometimes hold collateral a little longer while they confirm no amendment, extension, or related claim is still outstanding. Ask for written confirmation that all L/C obligations have terminated, and verify that any public filings have actually been removed.